I have ADHD and maybe some sort of low grade dyslexia. My voracious curiosity with no regard to structured learning or topical coherence has only been a huge boon to my reading/writing. I think ADHD/dyslexia has been a bigger problem in my math and science classes where I write something different than what my brain is thinking, or I make arithmetic mistakes. For instance, if I forget to write the first noun in a sentence, it isn't as huge a problem as when I mix up a summation and summand in an answer or on the way to one.